FELICIUDADES combines two powerful ideas: felicidad and ciudades—happiness and cities. The name reframes urban policy around a human question: what makes a place truly worth living in? Instead of presenting sustainability as a technical obligation, the concept turns it into a positive, inclusive national movement. Its smiling symbol is immediate and easy to recognise, while the flexible identity can adapt to cities of every scale and character. Nature, sustainable mobility, clean streets, welcoming communities and renewable energy become connected pillars of one shared vision. Designed for public spaces, campaigns, services and digital platforms, Feliciudades gives institutions a warm language for collective progress. It turns policy into participation and civic pride into action, creating a scalable place-branding system that can unite diverse territories without erasing their local identity.